I will add a feature to the dictionary builder tool, that marks a word as vulgar. The words that are shown in the tool are words that users did not find in our dictionary and a lot of them are vulgar.If you press the RED X button, you are deleting that word and it will reappear during the translation phase. The X-button appears in the list only after you press 'show my words' and sorry for the delay in answering.This is a fantastic idea, I am learning German just since last year. I speak, write and read well, and I will improve soon. This site, Vocabulix, I'm visiting often and I am mostly online.